Automobile rear floor mixed line production clamping device

Abstract

The invention discloses an automobile rear floor mixed-line production clamping device, and belongs to the technical field of automobile rear floor production. The automobile rear floor mixed-line production clamping device comprises a base and a plurality of T-shaped tables; and the clamping mechanism comprises a first sliding groove formed in the upper end of the T-shaped table, two sliding blocks are symmetrically and slidably connected to the inner wall of the first sliding groove, clamping plates are fixedly connected to the side walls, close to each other, of the two sliding blocks, and a plurality of sliding barrels are fixedly connected to the side walls of the clamping plates. According to the automobile rear floor clamping device, an electric push rod is driven to extend to drive a plurality of clamping heads to move, when the clamping heads move to be attached to the side wall of an automobile rear floor, the clamping rods start to extrude first springs, the first springs are compressed under stress, counter-acting force is provided, then the clamping heads clamp the automobile rear floor, and due to flexible clamping of the first springs, the clamping heads can clamp the automobile rear floor; and the clamping head can be located at different positions, so that the clamping device is suitable for automobile rear floors with different molded surfaces, multiple types of clamps do not need to be designed, and the application range is wider.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive rear floor production, and particularly relates to a clamping device for mixed-line production of automotive rear floors. Background Art

[0002] The automotive rear floor is an important part of a vehicle. It is located at the bottom of the vehicle's trunk and plays a role in supporting and protecting the vehicle body. The installation position and design of the automotive rear floor are very important and require strict process and quality control. Some high-end models also install sound insulation materials on the rear floor to improve the comfort of riding in the vehicle.

[0003] Currently, during the production of automotive rear floors, fixtures are usually used to clamp and process the automotive rear floors. Since the profiles of the rear floors of different vehicles are different, it is necessary to specifically design corresponding fixtures for different vehicle models to clamp them, resulting in a large variety of fixtures during the production of the entire automotive rear floor, greatly increasing the production cost, and requiring frequent fixture replacement, which is very troublesome. In addition, too many fixtures will also occupy a large amount of space.

[0004] Based on this, we propose a clamping device for mixed-line production of automotive rear floors. Summary of the Invention

[0005] The purpose of the present invention is to solve the disadvantages existing in the prior art, and to propose a clamping device for mixed-line production of automotive rear floors.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions: A clamping device for mixed-line production of automotive rear floors, including a base and a plurality of T-shaped platforms; A clamping mechanism, the clamping mechanism includes a first chute opened at the upper end of the T-shaped platform, two sliders are symmetrically and slidably connected to the inner wall of the first chute, clamping plates are fixedly connected to the side walls of the two sliders close to each other, a plurality of sliding cylinders are fixedly connected to the side walls of the clamping plates, a sliding plug is hermetically and slidably connected to the inner wall of each of the plurality of sliding cylinders, an adjusting rod is fixedly connected to the side wall of the sliding plug, one end of the adjusting rod penetrates through the sliding cylinder and the side wall of the clamping plate and is fixedly connected to a clamping block, a cavity is opened in the side wall of the clamping block, a clamping rod is hermetically and slidably connected to the inner wall of the cavity, a clamping head is fixedly connected to one end of the clamping rod, and a first spring is fixedly connected between the inner wall of the cavity and the clamping rod; A cleaning mechanism is installed on the clamping plate.

[0007] Preferably, exhaust holes are opened in the inner wall of the sliding cylinder, and electromagnetic valves are installed in the inner walls of the exhaust holes.

[0008] Preferably, the clamping mechanism further includes a second chute opened at the upper end of the T-shaped table. A conductive block is slidably connected to the inner wall of the second chute. Two driving rods are symmetrically and rotatably connected to the upper end of the conductive block. The other ends of the two driving rods are respectively rotatably connected to the upper ends of the two clamping plates. An electric push rod is fixedly connected to the side wall of the T-shaped table. The movable end of the electric push rod penetrates through the inner wall of the second chute and is fixedly connected to the side wall of the conductive block.

[0009] Preferably, a plurality of fixing rods are fixedly connected to the upper end of the base. An installation plate is fixedly connected to the upper ends of the plurality of fixing rods. A rotating rod is rotatably connected to the upper end of the installation plate. A rotating table is fixedly connected to the upper end of the rotating rod. The plurality of T-shaped tables are all fixedly connected to the upper end of the rotating table.

[0010] Preferably, a rotating mechanism is installed on the base. The rotating mechanism includes a servo motor fixedly connected to the upper end of the base. The output end of the servo motor is fixedly connected with a first one-way bearing. The inner ring of the first one-way bearing is fixedly connected with a second one-way bearing. The inner ring of the second one-way bearing is fixedly connected with a rotating shaft.

[0011] Preferably, the rotating mechanism further includes a groove opened at the lower end of the rotating rod. A toothed ring is fixedly connected to the inner wall of the groove. A gear is fixedly connected to the upper end of the rotating shaft. The gear is meshed with the toothed ring.

[0012] Preferably, the cleaning mechanism includes an air inlet cavity opened in the clamping plate. A plurality of air spraying holes are opened on the inner wall of the air inlet cavity.

[0013] Preferably, the cleaning mechanism further includes an air pumping cylinder fixedly connected to the upper end of the base through a fixed shaft. A sliding plate is hermetically and slidably connected to the inner wall of the air pumping cylinder. A one-way air inlet pipe is fixedly connected to the inner wall of the air pumping cylinder. A one-way air supply pipe is fixedly connected to the inner wall of the air pumping cylinder. A connecting head is fixedly connected to the lower end of the clamping plate. The connecting head is communicated with the air inlet cavity. The other end of the one-way air supply pipe is threadedly connected with the connecting head. A T-shaped rod is fixedly connected to the side wall of the sliding plate. The other end of the T-shaped rod penetrates through the side wall of the air pumping cylinder. A second spring is sleeved on the side wall of the T-shaped rod. The two ends of the second spring are respectively fixedly connected to the side wall of the sliding plate and the inner wall of the air pumping cylinder. A cam is fixedly connected to the outer ring side wall of the first one-way bearing. The side wall of the cam is slidably abutted against the side wall of the T-shaped rod.

[0014] Preferably, the air inlet cavity is respectively communicated with a plurality of sliding cylinders through a plurality of connecting pipes, and electromagnetic valves are installed on the inner walls of the plurality of connecting pipes.

[0015] Preferably, a conductive plate is fixedly connected to the inner wall of the second chute. The conductive block, the conductive plate, the electromagnetic valve and an external power supply are electrically connected through wires.

[0016] The present invention has the following beneficial effects: 1. By setting up a clamping mechanism, the electric push rod is driven to extend, driving multiple clamping heads to move. When the clamping heads move to fit the side wall of the rear floor of the vehicle, the clamping rod will start to squeeze the first spring. The first spring is compressed under force and will provide a reaction force, thereby enabling the clamping heads to clamp the rear floor of the vehicle. And due to the flexible clamping of the first spring, the clamping heads can be located at different positions, thus being applicable to rear floors of vehicles with different profiles. There is no need to design multiple types of jigs, and the applicable range is wider. 2. By setting up a conductive plate, when the conductive block moves to contact the conductive plate, the clamping action is completed at this time, and the circuit is connected. The solenoid valve installed on the inner wall of the exhaust hole is powered off and closed, while the solenoid valve installed on the inner wall of the connecting pipe is powered on and opened. Some air on the inner wall of the intake cavity will enter the sliding cylinder through the connecting pipe, increasing the pressure inside the sliding cylinder. Then, the sliding plug is pushed to slide in a sealed manner, driving the adjusting rod to move, and further driving the clamping block to move, further squeezing the first spring. Since the side profiles of the rear floor of the vehicle are uneven, after clamping, the deformation amounts of the first springs will be different, resulting in uneven clamping forces. After clamping, the adjusting rod pushes the clamping block to continue squeezing the first spring, compressing all the first springs to the limit. This can not only further enhance the clamping force but also make the deformation amounts of all the first springs the same, thereby providing uniform clamping force and improving the stability of clamping. 3. By setting up a rotating mechanism, the servo motor is driven to rotate forward. The servo motor drives the rotating shaft to rotate through the first one-way bearing and the second one-way bearing, driving the gear to rotate, thereby driving the toothed ring to rotate, driving the rotating rod to rotate, and driving the rotating table to rotate by a certain angle. The jig on the rotating table can be replaced. Since the spring stiffness coefficients of the first springs on different T-shaped platforms are different, different clamping forces can be provided according to different requirements, further expanding the applicable range. 4. By setting up a cleaning mechanism, during the process of clamping the rear floor of the vehicle, the servo motor is synchronously driven to rotate in the reverse direction. Then, the cam is driven to rotate through the first one-way bearing. The cam cooperates with the second spring to drive the T-shaped rod to slide reciprocally, and further drives the sliding plate to slide reciprocally in a sealed manner. The external air is pumped into the air pump cylinder through the one-way intake pipe, and then the air will enter the connector through the one-way supply pipe and finally enter the intake cavity. Then, the air will be ejected horizontally through multiple air injection holes to form a jet flow, blowing away the dust on the surface of the rear floor of the vehicle, thus facilitating the subsequent welding process of the rear floor of the vehicle. Description of the Drawings

[0017] Figure 1 is a three-dimensional structural schematic diagram of a clamping device for mixed-line production of the rear floor of a vehicle proposed by the present invention; Figure 2 is Figure 1 a cross-sectional schematic diagram of the structure in Figure 3 is Figure 2Schematic cross-sectional structure diagram of the clamping block and the sliding cylinder; Figure 4 is Figure 2 the enlarged schematic diagram of the structure at position A in Figure 5 is Figure 2 the enlarged schematic diagram of the structure at position B in Figure 6 is Figure 3 the enlarged schematic diagram of the structure at position C in Figure 7 is Figure 3 the enlarged schematic diagram of the structure at position D in Figure 8 is Figure 1 the enlarged schematic diagram of the structure at position E in

[0018] In the figure: 1. Base; 2. Fixed rod; 3. Mounting plate; 4. Rotating rod; 5. Rotating table; 6. T-shaped table; 7. First chute; 8. Slide block; 9. Clamping plate; 10. Clamping block; 11. Cavity; 12. Clamping rod; 13. Clamping head; 14. First spring; 15. Sliding cylinder; 16. Slide plug; 17. Adjusting rod; 18. Exhaust hole; 19. Second chute; 20. Conductive block; 21. Driving rod; 22. Electric push rod; 23. Servo motor; 24. First one-way bearing; 25. Second one-way bearing; 26. Rotating shaft; 27. Groove; 28. Gear ring; 29. Gear; 30. Air pump cylinder; 31. Slide plate; 32. One-way intake pipe; 33. One-way air supply pipe; 34. Connector; 35. Intake cavity; 36. Air injection hole; 37. T-shaped rod; 38. Second spring; 39. Cam; 40. Connecting pipe; 41. Conductive plate. Specific embodiments

[0019] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be given with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0020] Referring to Figure 1 - Figure 8 , an automotive rear floor mixed-line production clamping device, comprising a base 1 and a plurality of T-shaped tables 6; The clamping mechanism, the clamping mechanism includes a first chute 7 opened at the upper end of the T-shaped table 6, two slide blocks 8 are symmetrically and slidably connected to the inner wall of the first chute 7, clamping plates 9 are fixedly connected to the side walls of the two slide blocks 8 close to each other, a plurality of sliding cylinders 15 are fixedly connected to the side walls of the clamping plates 9, and slide plugs 16 are hermetically and slidably connected to the inner walls of the plurality of sliding cylinders 15 (as Figure 6As shown in the figure, a regulating rod 17 is fixedly connected to the side wall of the sliding plug 16. One end of the regulating rod 17 penetrates through the side walls of the sliding cylinder 15 and the clamping plate 9 and is fixedly connected to a clamping block 10. A cavity 11 is formed in the side wall of the clamping block 10. A clamping rod 12 is hermetically and slidably connected to the inner wall of the cavity 11. One end of the clamping rod 12 is fixedly connected to a clamping head 13. A first spring 14 is fixedly connected between the inner wall of the cavity 11 and the clamping rod 12. A cleaning mechanism is installed on the clamping plate 9.

[0021] It should be noted that the spring constants of the first springs 14 provided on the multiple T-shaped platforms 6 are different, so different clamping forces can be provided.

[0022] An exhaust hole 18 is formed in the inner wall of the sliding cylinder 15, and an electromagnetic valve is installed on the inner wall of the exhaust hole 18.

[0023] The clamping mechanism further includes a second sliding groove 19 formed in the upper end of the T-shaped platform 6. A conductive block 20 is slidably connected to the inner wall of the second sliding groove 19. Two driving rods 21 are symmetrically and rotatably connected to the upper end of the conductive block 20. The other ends of the two driving rods 21 are respectively rotatably connected to the upper ends of the two clamping plates 9. An electric push rod 22 is fixedly connected to the side wall of the T-shaped platform 6. The movable end of the electric push rod 22 penetrates through the inner wall of the second sliding groove 19 and is fixedly connected to the side wall of the conductive block 20.

[0024] A plurality of fixing rods 2 are fixedly connected to the upper end of the base 1. An installation plate 3 is fixedly connected to the upper ends of the plurality of fixing rods 2. A rotating rod 4 is rotatably connected to the upper end of the installation plate 3. A rotating platform 5 is fixedly connected to the upper end of the rotating rod 4. A plurality of T-shaped platforms 6 are fixedly connected to the upper end of the rotating platform 5.

[0025] Further, the automotive rear floor is placed between the clamping heads 13 manually or by a manipulator. Then, the electric push rod 22 is driven to extend, driving the conductive block 20 to move towards the center position of the rotating platform 5 on the inner wall of the second sliding groove 19. Further, the conductive block 20 will drive the two clamping plates 9 to move closer to each other through the two driving rods 21, and then drive a plurality of clamping heads 13 to move. When the clamping heads 13 move to fit the side wall of the automotive rear floor, the clamping rod 12 will start to compress the first spring 14. The first spring 14 is compressed under force and will provide a reaction force, so that the clamping heads 13 clamp the automotive rear floor. And due to the flexible clamping of the first spring 14, the clamping heads 13 can be located at different positions, so it is applicable to automotive rear floors with different profiles, without the need to design multiple fixtures, and the application range is wider.

[0026] A rotating mechanism is installed on the base 1. The rotating mechanism includes a servo motor 23 fixedly connected to the upper end of the base 1. The output end of the servo motor 23 is fixedly connected to a first one-way bearing 24. The inner ring of the first one-way bearing 24 is fixedly connected to a second one-way bearing 25. The inner ring of the second one-way bearing 25 is fixedly connected to a rotating shaft 26.

[0027] It should be noted that the first one-way bearing 24 and the second one-way bearing 25 are arranged in opposite directions. The output end of the servo motor 23 is fixedly connected to the inner ring of the first one-way bearing 24. The inner ring of the first one-way bearing 24 is fixedly connected to the outer ring of the second one-way bearing 25. The rotating shaft 26 is fixedly connected to the inner ring of the second one-way bearing 25. When the servo motor 23 rotates forward, it can drive the rotating shaft 26 to rotate. At this time, the outer ring of the first one-way bearing 24 does not rotate. When the servo motor 23 is driven to rotate in the reverse direction, it can drive the outer ring of the first one-way bearing 24 to rotate, while the rotating shaft 26 does not rotate.

[0028] The rotating mechanism further includes a groove 27 formed at the lower end of the rotating rod 4. The inner wall of the groove 27 is fixedly connected with a gear ring 28. The upper end of the rotating shaft 26 is fixedly connected with a gear 29. The gear 29 is meshed and connected with the gear ring 28.

[0029] Furthermore, when the servo motor 23 rotates forward, the servo motor 23 drives the rotating shaft 26 to rotate through the first one-way bearing 24 and the second one-way bearing 25, drives the gear 29 to rotate, thereby drives the gear ring 28 to rotate, drives the rotating rod 4 to rotate, and drives the rotating table 5 to rotate by a certain angle. Since the spring constant of the first spring 14 on different T-shaped platforms 6 is different, different clamping forces can be provided according to different requirements, further improving the applicable range.

[0030] The cleaning mechanism includes an air inlet cavity 35 formed in the clamping plate 9. A plurality of air spraying holes 36 are formed in the inner wall of the air inlet cavity 35.

[0031] The cleaning mechanism further includes an air pumping cylinder 30 fixedly connected to the upper end of the base 1 through a fixed shaft. A sliding plate 31 is hermetically and slidably connected to the inner wall of the air pumping cylinder 30. A one-way air inlet pipe 32 is fixedly connected to the inner wall of the air pumping cylinder 30. The one-way air inlet pipe 32 only allows external air to enter the air pumping cylinder 30. A one-way air supply pipe 33 is fixedly connected to the inner wall of the air pumping cylinder 30. A connecting head 34 is fixedly connected to the lower end of the clamping plate 9. The connecting head 34 is communicated with the air inlet cavity 35. The other end of the one-way air supply pipe 33 is threadedly connected to the connecting head 34. The one-way air supply pipe 33 only allows the air in the air pumping cylinder 30 to enter the connecting head 34. A T-shaped rod 37 is fixedly connected to the side wall of the sliding plate 31. The other end of the T-shaped rod 37 penetrates through the side wall of the air pumping cylinder 30. A second spring 38 is sleeved on the side wall of the T-shaped rod 37. Both ends of the second spring 38 are fixedly connected to the side wall of the sliding plate 31 and the inner wall of the air pumping cylinder 30 respectively. A cam 39 is fixedly connected to the side wall of the outer ring of the first one-way bearing 24. The side wall of the cam 39 is slidably abutted against the side wall of the T-shaped rod 37.

[0032] It should be noted that the connector 34 is internally provided with threads, and one end of the one-way air supply pipe 33 connected to the connector 34 is also provided with threads. The one-way air supply pipe 33 can be connected to the connector 34 through the threads, so that the one-way air supply pipe 33 can be detached from the connector 34. When in use, the corresponding one-way air supply pipe 33 can be connected to the connector 34 in the corresponding direction.

[0033] Further, during the process of clamping the rear floor of the vehicle, the synchronous drive servo motor 23 rotates reversely, and then drives the cam 39 to rotate through the first one-way bearing 24. The cam 39 cooperates with the second spring 38 to drive the T-shaped rod 37 to slide reciprocally, and then drives the slide plate 31 to slide reciprocally and seal, sucking the external air into the air pumping cylinder 30 through the one-way intake pipe 32. Then the air will enter the connector 34 through the one-way air supply pipe 33, and finally enter the intake cavity 35. Then the air will be ejected laterally through a plurality of air injection holes 36 to form a jet flow, blowing away the dust on the surface of the rear floor of the vehicle, which is convenient for subsequent welding processing of the rear floor of the vehicle.

[0034] The intake cavity 35 is respectively communicated with a plurality of sliding cylinders 15 through a plurality of connecting pipes 40, and electromagnetic valves are installed on the inner walls of the plurality of connecting pipes 40.

[0035] A conductive plate 41 is fixedly connected to the inner wall of the second sliding groove 19 (as Figure 8 shown), and the conductive block 20, the conductive plate 41, the electromagnetic valve and the external power supply are electrically connected through wires.

[0036] Further, when the conductive block 20 moves to contact the conductive plate 41, the clamping action is completed at this time, and the circuit is connected. The electromagnetic valve installed on the inner wall of the exhaust hole 18 is powered off and closed, while the electromagnetic valve installed on the inner wall of the connecting pipe 40 is powered on and opened. Part of the air on the inner wall of the intake cavity 35 will enter the sliding cylinder 15 through the connecting pipe 40, increasing the pressure in the sliding cylinder 15, and then pushing the sliding plug 16 to slide in a sealed manner, driving the adjusting rod 17 to move, and then driving the clamping block 10 to move, further compressing the first spring 14. Since the side surfaces of the rear floor of the vehicle are uneven, after clamping, the deformation amounts of the first spring 14 will be different, resulting in uneven clamping force. After clamping, the adjusting rod 17 pushes the clamping block 10 to continue compressing the first spring 14, compressing all the first springs 14 to the limit. This can not only further enhance the clamping force, but also make the deformation amounts of all the first springs 14 the same, thereby providing uniform clamping force and improving the stability of clamping.

[0037] In the present invention, the automotive rear floor is placed between the clamping heads 13 manually or by a manipulator. Then, the electric push rod 22 is driven to extend, driving the conductive block 20 to move towards the center position of the rotary table 5 along the inner wall of the second chute 19. Further, the conductive block 20 drives the two clamping plates 9 to move closer to each other through the two driving rods 21, and then drives the multiple clamping heads 13 to move. When the clamping heads 13 move to fit against the side wall of the automotive rear floor, the clamping rod 12 starts to squeeze the first spring 14. The first spring 14 is compressed under force and provides a reaction force, thereby enabling the clamping heads 13 to clamp the automotive rear floor. Moreover, due to the flexible clamping of the first spring 14, the clamping heads 13 can be located at different positions, thus being applicable to automotive rear floors with different profiles without the need to design multiple fixtures, and having a wider application range.

[0038] During the process of clamping the automotive rear floor, the servo motor 23 is synchronously driven to rotate in the reverse direction, and then the cam 39 is driven to rotate through the first one-way bearing 24. The cam 39 cooperates with the second spring 38 to drive the T-shaped rod 37 to slide reciprocally, and then drives the slide plate 31 to slide reciprocally and seal, sucking the external air into the air pump cylinder 30 through the one-way intake pipe 32. Then, the air enters the connector 34 through the one-way air supply pipe 33 and finally enters the intake cavity 35. Then, the air is horizontally ejected through the multiple air ejection holes 36 to form a jet flow, blowing away the dust on the surface of the automotive rear floor, thus facilitating the subsequent welding process of the automotive rear floor.

[0039] When the conductive block 20 moves into contact with the conductive plate 41, the clamping action is completed at this time and the circuit is switched on. The solenoid valve installed on the inner wall of the exhaust hole 18 is powered off and closed, while the solenoid valve installed on the inner wall of the connecting pipe 40 is powered on and opened. Part of the air on the inner wall of the intake cavity 35 enters the sliding cylinder 15 through the connecting pipe 40, increasing the pressure inside the sliding cylinder 15. Then, the sliding plug 16 is pushed to slide in a sealed manner, driving the adjusting rod 17 to move, and then driving the clamping block 10 to move, further squeezing the first spring 14. Since the side profiles of the automotive rear floor are uneven, after clamping, the deformation amounts of the first spring 14 will be different, resulting in uneven clamping force. After clamping, the adjusting rod 17 pushes the clamping block 10 to continue squeezing the first spring 14, compressing all the first spring 14 to the limit. This can not only further enhance the clamping force but also make the deformation amounts of all the first spring 14 the same, thereby providing uniform clamping force and improving the clamping stability.

[0040] When the clamping is released, the conductive block 20 will move outward to the outside of the rotating table 5. Then, the conductive block 20 will be separated from the conductive plate 41 immediately, and the circuit will be disconnected. The solenoid valve installed on the inner wall of the exhaust hole 18 will be powered off and opened, while the solenoid valve installed on the inner wall of the connecting pipe 40 will be powered off and closed. Then, the air in the sliding cylinder 15 will be discharged through the exhaust hole 18, and the sliding plug 16 will be reset under the reaction of the first spring 14. Then, the clamping block 10 will be driven to reset through the adjusting rod 17. And the conductive block 20 will drive the clamping plates 9 to move away from each other through the driving rod 21, and then drive the clamping head 13 to reset, slowly releasing the clamping of the vehicle rear floor.

[0041] In addition, the servo motor 23 can be driven to rotate forward. The servo motor 23 drives the rotating shaft 26 to rotate through the first one-way bearing 24 and the second one-way bearing 25, drives the gear 29 to rotate, thereby drives the toothed ring 28 to rotate, drives the rotating rod 4 to rotate, and drives the rotating table 5 to rotate by a certain angle. The fixture on the rotating table 5 can be replaced. Since the spring constant of the first spring 14 on different T-shaped tables 6 is different, different clamping forces can be provided according to different requirements, further improving the scope of application.

[0042] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A clamping device for mixed production of rear floor of automobile, characterized in that: include: A base (1) and a plurality of T-shaped stages (6); A clamping mechanism, the clamping mechanism comprising a first slide groove (7) provided at the upper end of the T-shaped stage (6), the inner wall of the first slide groove (7) being symmetrically slidably connected to two sliders (8), the side walls of the two sliders (8) close to each other being fixedly connected to a clamping plate (9), the side wall of the clamping plate (9) being fixedly connected to a plurality of slide cylinders (15), the inner walls of the plurality of slide cylinders (15) being sealingly slidably connected to a slide plug (16), the side wall of the slide plug (16) being fixedly connected to an adjusting rod (17), one end of the adjusting rod (17) passing through the slide cylinder (15) and the side wall of the clamping plate (9) and being fixedly connected to a clamping block (10), the side wall of the clamping block (10) being provided with a cavity (11), the inner wall of the cavity (11) being sealingly slidably connected to a clamping rod (12), one end of the clamping rod (12) being fixedly connected to a clamping head (13), and a first spring (14) being fixedly connected between the inner wall of the cavity (11) and the clamping rod (12); A cleaning mechanism is installed on the clamping plate (9).

2. The automobile rear floor mixed-line production clamping device according to claim 1 is characterized in that: in: An exhaust hole (18) is provided on the inner wall of the slide cylinder (15), and an electromagnetic valve is installed on the inner wall of the exhaust hole (18).

3. The automobile rear floor mixed line production clamping device according to claim 1 is characterized in that: in: The clamping mechanism further comprises a second slide groove (19) provided at the upper end of the T-shaped stage (6), the inner wall of the second slide groove (19) being slidably connected to a conductive block (20), the upper end of the conductive block (20) being symmetrically rotatably connected to two driving rods (21), the other ends of the two driving rods (21) being rotatably connected to the upper ends of the two clamping plates (9), and the side wall of the T-shaped stage (6) being fixedly connected to an electric push rod (22), the movable end of the electric push rod (22) passing through the inner wall of the second slide groove (19) and being fixedly connected to the side wall of the conductive block (20).

4. The automobile rear floor mixed-line production clamping device according to claim 2 is characterized in that: in: The upper end of the base (1) is fixedly connected to a plurality of fixing rods (2), the upper ends of the plurality of fixing rods (2) are commonly fixedly connected to a mounting plate (3), the upper end of the mounting plate (3) is rotatably connected to a rotating rod (4), the upper end of the rotating rod (4) is fixedly connected to a rotating platform (5), and the plurality of T-shaped platforms (6) are all fixedly connected to the upper end of the rotating platform (5).

5. The automobile rear floor mixed-line production clamping device according to claim 4 is characterized in that: in: A rotating mechanism is mounted on the base (1), the rotating mechanism comprising a servo motor (23) fixedly connected to the upper end of the base (1), the output end of the servo motor (23) being fixedly connected to a first one-way bearing (24), the inner ring of the first one-way bearing (24) being fixedly connected to a second one-way bearing (25), and the inner ring of the second one-way bearing (25) being fixedly connected to a rotating shaft (26).

6. The automobile rear floor mixed-line production clamping device according to claim 5 is characterized in that: in: The rotating mechanism further comprises a groove (27) formed at the lower end of the rotating rod (4), a gear ring (28) being fixedly connected to the inner wall of the groove (27), a gear (29) being fixedly connected to the upper end of the rotating shaft (26), and the gear (29) being meshingly connected to the gear ring (28).

7. The automobile rear floor mixed-line production clamping device according to claim 3 is characterized in that: in: The cleaning mechanism comprises an air intake cavity (35) formed in the clamping plate (9), and a plurality of air injection holes (36) are formed on the inner wall of the air intake cavity (35).

8. The automobile rear floor mixed-line production clamping device according to claim 5 is characterized in that: in: The cleaning mechanism further comprises a pump cylinder (30) fixedly connected to the upper end of the base (1) via a fixed shaft, the inner wall of the pump cylinder (30) being sealingly and slidably connected to a slide plate (31), the inner wall of the pump cylinder (30) being fixedly connected to a one-way air inlet pipe (32), the inner wall of the pump cylinder (30) being fixedly connected to a one-way air supply pipe (33), the lower end of the clamping plate (9) being fixedly connected to a connector (34), the connector (34) being in communication with the air inlet cavity (35), the other end of the one-way air supply pipe (33) being in communication with a connector (34) and a connector (35). The slide plate (31) is threadedly connected to a head (34); a T-shaped rod (37) is fixedly connected to the side wall of the slide plate (31); the other end of the T-shaped rod (37) penetrates the side wall of the pump cylinder (30); a second spring (38) is sleeved on the side wall of the T-shaped rod (37); two ends of the second spring (38) are respectively fixedly connected to the side wall of the slide plate (31) and the inner wall of the pump cylinder (30); a cam (39) is fixedly connected to the side wall of the outer ring of the first one-way bearing (24); and the side wall of the cam (39) slides against the side wall of the T-shaped rod (37).

9. The automobile rear floor mixed-line production clamping device according to claim 7 is characterized in that: in: The air intake chamber (35) is respectively connected to the plurality of slide cylinders (15) via a plurality of connecting pipes (40), and solenoid valves are installed on the inner walls of the plurality of connecting pipes (40).

10. The automobile rear floor mixed-line production clamping device according to claim 7, characterized in that: in: A conductive plate (41) is fixedly connected to the inner wall of the second slide groove (19), and the conductive block (20), the conductive plate (41), the solenoid valve and the external power supply are electrically connected via a wire.

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